A289654 Related to number of mesh patterns of length 2 that avoid the pattern 321.

1, 1, 1, 3, 13, 40, 130, 427, 1428, 4860, 16794

Offset

1,4

Links

Table of n, a(n) for n=1..11.

Murray Tannock, Equivalence classes of mesh patterns with a dominating pattern, MSc Thesis, Reykjavik Univ., May 2016. See Appendix B2.

Crossrefs

All of A000108, A001453, A246604, A273526, A120304, A289615, A289616, A289652, A289653, A289654 are very similar sequences.

Sequence in context: A227446 A059020 A290720 * A360787 A095109 A259764

Adjacent sequences: A289651 A289652 A289653 * A289655 A289656 A289657

Keyword

nonn,more

Author

N. J. A. Sloane, Jul 09 2017

Status

approved